【摘要】 采用十六烷基三乙氧基硅烷（HDTES）和纳米二氧化硅（SiO₂）为原料，通过水解缩聚，合成出一种改性纳米硅溶胶（SiO₂@HDTES），并将其与实验室自制的氨基硅树脂（ASi）复合，制备出一种新型有机-无机纳米杂化复合材料（ASi/SiO₂@HDTES）。以ASi/SiO₂@HDTES为成膜物质，采用喷涂技术在织物表面上得到无氟超疏水织物涂层。利用红外光谱（FT-IR）、热分析仪（TGA）、X射线光电子能谱仪（XPS）、接触角测量仪（OCA）、原子力显微镜（AFM）等对产物结构和性能进行测试和表征。结果表明：涂层表面具有微纳米级的分层结构，水接触角为152.8°，滚动角为8.4°，涂层可在室温下固化并具有良好的自清洁性能。该超疏水织物涂层具有无氟、无污染、环保等特点。更多还原

【Abstract】 A modified nano-silica sol（SiO₂@HDTES） is synthesized by hydrolytic condensation using cetyltriethoxysilane（HDTES） and nano-silica（SiO₂） as raw materials, and a new organic-inorganic nano-hybrid composite（ASi/SiO₂@HDTES） is prepared by compounding it with a self-made aminosilicone resin（ASi） in the laboratory. With ASi/SiO₂@HDTES as the film-forming substance, a fluorine-free superhydrophobic fabric coating is obtained by spraying technique. The structure and properties of the products are tested and characterized by infrared spectroscopy（FT-IR）, thermal analyzer（TGA）, X-ray photoelectron spectroscopy（XPS）, contact angle measurement（OCA）, and atomic force microscopy（AFM）. The results show that the surface of the coating has a micro-and nano-level layered structure, the water contact angle of the fabric coating is 152.8°, the rolling angle is 8.4°, and the coating can be cured at room temperature and has good self-cleaning performance. The superhydrophobic fabric coating is fluorine-free, pollution-free and environmentally friendly.更多还原